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I wanted to calculate the NDVI of the seagrass bed in our area. The seagrasses are visible in band combination 4-3-2. However, once I calculated the NDVI, the area turned white and generated values close to 0. I think this is because of the water and band 08 can't penetrate it.

I'd like to know if there is something I can do to calculate the NDVI of the seagrass bed.

I am using QGIS and Sentinel-2 MSI for this.

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  • What platform you using?
    – Keagan Allan
    Commented Apr 1 at 10:01
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    Water is pretty much opaque to the NIR band so NDVI won't work.
    – user2856
    Commented Apr 1 at 10:10
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    If its visible in bands 4-3-2 (which bands are those?) then could you use those to compute a seagrass index?
    – Spacedman
    Commented Apr 1 at 10:21
  • 2
    There's a lot of research on remote sensing for seagrass, what do they use?
    – Spacedman
    Commented Apr 1 at 10:23

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